Concaveness
n. 凹面, 成凹形
✅ 同义词
🗣️ 情景例句
Let me foot the bill tonight. Maybe you can treat me next time.
今晚让我付账吧，也许下次你请客。
Would you like to leave your telephone number?
你想要留下你的电话号码吗？
It is now being sent to his home by train.
现在正用火车给他运回家来。